Sanding wheel for shoes



April El, 1936. T. E. AHO 2,038,154

SANDING WHEEL FOR SHOES Filed 001;. 24, 1955 2 Sheets-Sheet l April 21,1936. T. E. AHO

v SANDING WHEEL FOR SHOES 2 Sheets-Sheet 2 Filed 001;. 24; 1955 I'll-Patented Apr. 21, 1936 UNITED STATES PATENT OFFICE SANDING WHEEL FORSHOES Tahvan E. Aho, Waukegan, 111.

Application October 24, 1935, Serial No. 46,590 6 Claims. (01. 51-194)This invention relates to abrading wheels and particularly to suchwheels which are used in finishing shoes as, for instance, used inabrading and polishing the heels and soles of shoes.

One of the objects of this invention is to provide a sanding wheel soconstructed that the sanding cloth or paper may be readily applied orremoved when worn and in which the cloth or paper is supported on a rimof soft rubber attached to the periphery of the wheel.

Another object of this invention is to provide the rubber rim withrecesses at spaced distances into which the sand paper is forced, thuspreventing any circumferential movement of the 'paper on the rim andpermitting the abraded particles to gather in the recesses of the rim,thereby preventing these particles from getting between the paper andthe article being abraded.

A further object is to provide for the purpose of holding the sand paperin place a chain formed of pivotally connected links on each side of thewheel, which links carry cross bars which, when the chains are in place,enter said recesses and force the sand paper into the recesses, thuslooking the sand paper against circumferentialmovement.

A still further object is to provide means for locking the connectedchains upon the wheel against accidental detachment, the means beingsuch, however, as to permit the ready unlocking of the chain to thuspermit the removal of the chain and the detachment and replacement ofthe sand paper or sand cloth.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings wherein:

Figure 1 is a side elevation of a sanding wheel constructed inaccordance with my invention, the chain being partly broken away;

Figure 2 is a sectionon the line 2-2 of Figure 1;

Figure 3 is a side elevation of one of the side plates;

Figure 4 is a fragmentary section on the line 4-4 of Figure 3;

V Figure 5 is a section on the line 5-5 of Figure 3;

t Figure 6 is a perspective view. of one of the end links of the chain;

Figure '7 is a fragmentary end elevation of one end of the links, theinner margin being in section.

Referring to these figures, Hl' designates the body of the wheel, whichbody is annular and may be made of any suitable material. The body ofthe wheel is made in'two half sections, the sections being split alongthe radial line H. One face of the wheel is formed with an annularrecess l2, the inner face of which is beveled downwardly and centrally.Disposed within the annu- 5 lar body In is a hub l3 having at one endthe plate M which bears against one face of the wheel, the hub beingscrew threaded at l5 for engagement by a collar Hi, this collar havingits inner end flared outward at II, this outwardly 10 flared portionbeing insertible within the recess l2. Disposed to surround the body ofthe wheel is a rubber rim designated generally l8. This rubber rim ismolded upon a canvas backing l9 and the rubber rim is formed at spacedintervals with the transversely extending depressions 20. Disposed oneach side of the body I0 is an annular plate. One of said plates isdesignated generally 2| and the other plate 22. Each of these plates issplit into two sections. These semi-circular sections are held to thebody of the wheel by screws 23. Each plate has its inside edge formedwith a circumferentially extending bead 24 to thereby reinforce theplate and strengthen it. The outer margin of each of the plates 2| and22 is bent slightly inwardly at 25. The exterior face of each plate isformed with a plurality of evenly spaced dents designated 26.

Disposed against the exterior faces of the plates 2| and 22 and bearingagainst the inner flange 21 of each plate is a chain composed of aseries of opposed links 28. Each link is pivoted to the next adjacentlink by pivots 29. The last link 29 of the series is detachablyconnected to the first link of the series designated 29 by a pin 32. Asshown in Figures 2, 3, and 4, there is attached to the inner face ofeach plate 2| and 22, an outwardly biased leaf spring 30 riveted at 3|to the plate and carrying at its'free end the laterally projecting pin32. Link 29 has an aperture to receive the pin (see Fig. 1) and link 29has at its free end an aperture 33 also adapted to receive said pin 32.A tapering recess 34 extends from the inner edge of the link 29 to thisaperture so this recess guides the link against the pin 32 as the link29 is pressed inward, until the pin snaps into the hole 33. Thus as link29 is forced radially inward, spring 30 is compressed until the pinenters the hole 33 V and then the spring springs outward, locking the 50spring 30, and for the purpose of manually forcing the spring inward, Iprovide on each spring a button 36. Each link of the two series of linkshas a radially projecting portion 31 connected by a cross bar 38 andwhen the chain, formed of those two sets of links is placed around thewheel and the links 29 are locked to the spring links 30, these crossbars will enter the recesses 20 formed in the rubber rim, thus forcingthe strip of sand paper 39 into these recesses 20 and locking the sandpaper firmly in place upon the rubber rim and preventing this sand paperfrom any circumferential movement. Of course, when the links of thechain are closed and latched, the cross bars 38 will be below theperipheral surface of the rubber cushion. The cross bar on the links 29fastens down both ends of the sand paper strip.

It will be understood that while I refer to a sand paper strip, I mayuse emery cloth, sand cloth, said paper or any other strip of abradingmaterial though I have referred to sand paper more particularly in thespecification.

It will be noted from Figure 5 that each plate 2| or 22 is provided withan outwardly pressed tongue 40 and that the links 29 when engaged withthe pins 32 extend in behind these tongues. In order to detach theendless connected chains from the wheel, it is only necessary to pressinward on the buttons 36, thus forcing the spring links 30 inward; thenthe links 29 may be pulled outward thus disconnecting the double chainand permitting its removal from the wheel. This ermits the removal ofthe sand paper and the re-insertion of an unworn piece of sand paper.The forward end of each link of the chain is sprung slightly inward thussecuring a firm grip. (See Fig. 6.)

The sand paper or sand cloth is a fine cloth grade used in all shoeshops. The rubber cushion is of a soft and springy type molded overcanvas, which canvas forms a fixed foundation for the cushion. It is tobe understood that the exterior rubber cushion may be transverselycurved or transversely fiat or have any desired shape depending upon thework to be done and upon the style of shoe to be operated on. Theconnected chains may be removed and the sand paper removed, a new pieceof sand paper placed on the wheel and the connected chains replacedwithin less than a minute. The construction which I have describedprovides for a very long and lasting service of the sand paper. Thespaces cut out of the rubber rim provides that all abraded particleswill pass from the space between the shoe and the sand paper into thesespaces between the teeth of the rubber rim, therefore, no abradedparticles are held between the sand paper and the shoe to thus preventproper abrasion.

It is to be understood that the cushion of rubber which surrounds therim of the wheel gives to the shape of the heel as the wheel is appliedto a heel. This sanding wheel may also be used on soles or any part tobe sanded but is particularly designed for use as a heel finisher. Wherethis sander is to be used on womens shoes, the rubber rim is given alaterally rounded contour whereas where the sander is to be used on mensshoes, the contour of the rubber rim is substantially transversely flat.

What is claimed is:-

1. A sandpaper supporting wheel including a body having a hub, a rim ofrubber surrounding the body and formed with spaced indentations in itsface, chains one on each side of the body and formed of pivotallyconnected links, one of the links of each chain being detachable fromthe next adjacent link, each link having a cross bar formed to extendinto a corresponding indentation in the rim whereby to hold a strip ofsand paper in place on the rim and force the sand paper into theindentations.

2. A sandpaper supporting wheel including a body having a hub, a rim ofrubber surrounding the body and formed with spaced indentations in itsface, chains one on each side of the body and formed of pivotallyconnected links, one of the links of each chain being detachable fromthe next adjacent link, opposed links having a cross bar formed toextend into a corresponding indentation in the rim whereby to hold astrip of sand paper in place on the rim and force the sand paper intothe indentations, the links of each chain being provided with inwardlyextending dents operatively engaging with the wheel to thereby preventcircumferential movement of the chains upon the wheel.

3. A sandpaper supporting wheel including a body having a hub, a rim ofrubber surrounding the periphery of the body and formed with spacedindentations in its face, metallic plates secured to opposite faces ofthe body, each plate being annular in form and provided with spacedindentations, means connecting said plates to the body, each platehaving a flange on its inner edge, chains on each side of the body andbearing against said plates, each chain being composed of links, one ofthe links of each chain being detachable from the next adjacent link,opposed links having a cross bar formed to extend into the correspondingindentation in the rubber rim whereby to hold a strip of sand paper inplace on the rim and force it into said indentations 'of the rim,

each link having dents engageable into the corsaid plates, each chainbeing formed of pivotally connected links bearing fiat against thecorresponding plate, a leaf spring carried by each plate and having anoutwardly projecting pin, one link of the chain having an aperture-forsaid pin, the next adjacent link also having an aperture for engagementwith said pin whereby when said links are brought into alinement theywill be connected to each other by said pin, the opposed springs beingadapted to be forced inward to detach the pin from engagement with theadjacent,

with spaced indentations in its face, chains disposed on each side faceof the body and formed each with a series of links, means detachablyconnecting the ends of each chain, means connecting chain beingdetachably connected with the next adjacent link and opposed linkshaving a cross bar formed to extend into a corresponding indentation inthe rim whereby to hold a strip of sand paper in place on the rim andforce the sand paper into the indentations, and coacting means on thelinks and body to prevent circumferential movement of the chains uponthe wheel. TAHVAN E. AHO.

